1) Changed the height of F3 for the end plate from 54mm to 58mm.
2) Tuned the F3 again.
* Additional weight: 440g x5 =2.2kg
* The position of keystone: 68.0mm
* The frequency: 0.34Hz.
3) Opened the cap of BF, and put additional 4 ballast weight.
4) Closed the cap of BF.
5) Tuned the F3 again,
* Additional weight: 440g x6 =2.6kg
* The position of keystone: 68.5mm
* The frequency: 0.23Hz.
6) Insert the shim of 5mm to the release sensors for F3.
7) The inner diameter of wire cramp (small hexagon) for the suspension wire was too small (7.2mm),
